| Application of Free Modal Test Analysis in Solving Shaking of All-steel Off-The-Road Radial Tire |
| Received:September 21, 2023 Revised:September 21, 2023 |
| DOI：10.12136/j.issn.1000-890X.2025.08.0621 |
| Key Words: all-steel off-the-road radial tire；rescue fire truck；shaking；free mode test analysis；comfort performance |
| Author Name | Affiliation | E-mail | | ZHANG Yanlong* | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | joseph.zhang@techking.com | | LI Kuiguan | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | | | CHENG Xianbin | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | | | YIN Haijian | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | | | JING Tao | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | |
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| Abstract: |
| The cause of the shaking of all-steel off-the-road radial tire for airport rescue fire truck during high-speed driving was analyzed，and the solutions were proposed.Through free modal test analysis and experimental verification，it was determined that the cause of the shaking of the tire was that the natural vibration frequency of the tire was consistent with vehicle traveling at a speed above 80 km·h-1，so that the tire resonated with vehicle.By adjusting the joint positioning angles of semi-finished components and optimizing material distribution，the problem of the shaking of the tire was solved，and the comfort performance of airport rescue fire truck was improved. |
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